Number of nonnegative integers with the property that their base 9/4 expansion (see A024652) has n digits.

A245425

Number of nonnegative integers with the property that their base 9/4 expansion (see A024652) has n digits.

Terms

    a(0) =9a(1) =18a(2) =36a(3) =81a(4) =180a(5) =405a(6) =918a(7) =2061a(8) =4635a(9) =10431a(10) =23472a(11) =52812a(12) =118827a(13) =267363a(14) =601560a(15) =1353510a(16) =3045402a(17) =6852150a(18) =15417342a(19) =34689015a(20) =78050286a(21) =175613148a(22) =395129583a(23) =889041555a(24) =2000343501a(25) =4500772875a(26) =10126738971a(27) =22785162687a(28) =51266616048a(29) =115349886108

External references